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/* gcc nft-json-file.c -o nft-json-file -lnftables */
#include <stdlib.h>
#include <nftables/libnftables.h>
int main(void)
{
struct nft_ctx *ctx;
int err;
ctx = nft_ctx_new(0);
if (!ctx) {
perror("cannot allocate nft context");
return EXIT_FAILURE;
}
nft_ctx_output_set_flags(ctx, NFT_CTX_OUTPUT_JSON);
/* create ruleset: all commands in the buffer are atomically applied */
err = nft_run_cmd_from_filename(ctx, "json-ruleset.nft");
if (err < 0)
fprintf(stderr, "failed to run nftables command\n");
err = nft_run_cmd_from_buffer(ctx, "list ruleset");
if (err < 0)
fprintf(stderr, "failed to run nftables command\n");
nft_ctx_free(ctx);
return EXIT_SUCCESS;
}
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